haveibeenpwned.com
haveibeenpwned.com is a website that checks if your email address or phone number has been in a data breach.
earth.fm
earth.fm is a website that allows users to listen to natural soundscapes from across the world. The website also allows users to create their own playlist and offer sounds from national parks and the everglades.
pixabay.com
If you are looking for copyright free images for your projects or website, then pixabay.com can be a life saver for you.
zamzar.com
zamzar.com is a universal file conversion website. It supports almost all file format which includes videos, images, documents and more...
mathway.com
mathway.com is a website for students who don't like math. This website is an algebra solver where users can enter the problem and it will solve it for you.
Summary
1. haveibeenpwned.com 2. earth.fm 3. pixabay.com 4. zamzar.com 5. mathway.com